package com.fxc.crowd.mvc.config;

import com.fxc.crowd.entity.po.AdminPO;
import com.fxc.crowd.entity.po.Role;
import com.fxc.crowd.service.api.AdminService;
import com.fxc.crowd.service.api.AuthService;
import com.fxc.crowd.service.api.RoleService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

@Component
public class CrowdUserDetailsService implements UserDetailsService {

    @Autowired
    private AdminService adminService;

    @Autowired
    private RoleService roleService;

    @Autowired
    private AuthService authService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        // 1.根据账号获取Admin对象
        AdminPO adminPO = adminService.getAdminByLoginAcct(username);

        // 2.获取adminId
        Integer id = adminPO.getId();

        // 3.根据adminId查询角色信息
        List<Role> assignedRoleList = roleService.getAssignedRole(id);

        // 4.根据adminId查询权限信息
        List<String> authNameList = authService.getAssignedAuthNameByAdminId(id);

        // 5.创建集合对象用来存储GrantedAuthority
        ArrayList<GrantedAuthority> authorities = new ArrayList<>();

        // 6.遍历assignedRoleList存入角色信息
        for (Role role : assignedRoleList) {

            String roleName = "ROLE_" + role.getName();

            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(roleName);

            authorities.add(simpleGrantedAuthority);
        }

        // 7.遍历authNameList存入权限信息
        for (String authName : authNameList) {

            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(authName);

            authorities.add(simpleGrantedAuthority);
        }

        // 8.封装SecurityAdmin对象
        SecurityAdmin securityAdmin = new SecurityAdmin(adminPO, authorities);

        return securityAdmin;
    }
}
